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2222111011020 = 2235170057217781
BaseRepresentation
bin100000010101100000001…
…000110011000011001100
321212102122201220021102120
4200111200020303003030
5242401340404323040
64420453530452540
7316353660643035
oct40254010630314
97772581807376
102222111011020
1178743480a90a
122ba7b0594150
1313170c702b04
147979d36ba8c
153cc076ac7d0
hex205602330cc

2222111011020 has 48 divisors (see below), whose sum is σ = 6221975987808. Its totient is φ = 592556730880.

The previous prime is 2222111010983. The next prime is 2222111011031. The reversal of 2222111011020 is 201101112222.

It is a super-2 number, since 2×22221110110202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10094530 + ... + 10312310.

It is an arithmetic number, because the mean of its divisors is an integer number (129624499746).

Almost surely, 22222111011020 is an apocalyptic number.

2222111011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222111011020 is an abundant number, since it is smaller than the sum of its proper divisors (3999864976788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222111011020 is a wasteful number, since it uses less digits than its factorization.

2222111011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387850 (or 387848 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2222111011020 its reverse (201101112222), we get a palindrome (2423212123242).

The spelling of 2222111011020 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 170057 217781 340114 435562 510171 653343 680228 850285 871124 1020342 1088905 1306686 1700570 2040684 2177810 2550855 2613372 3266715 3401140 4355620 5101710 6533430 10203420 13066860 37035183517 74070367034 111105550551 148140734068 185175917585 222211101102 370351835170 444422202204 555527752755 740703670340 1111055505510 2222111011020