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22212220021021 = 832707655115091
BaseRepresentation
bin1010000110011101011110…
…11110111110100100011101
32220122110121210201102120101
411003032233132332210131
510402411111311133041
6115124053014421101
74451531342652262
oct503165736764435
986573553642511
1022212220021021
117094171148748
1225a8a63661791
13c517ac775c34
1456b111b21269
15287bce019b31
hex1433af7be91d

22212220021021 has 16 divisors (see below), whose sum is σ = 22493064642048. Its totient is φ = 21931694334000.

The previous prime is 22212220021003. The next prime is 22212220021031. The reversal of 22212220021021 is 12012002221222.

It is a cyclic number.

It is not a de Polignac number, because 22212220021021 - 211 = 22212220018973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212220021021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212220021031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471877686 + ... + 1471892776.

It is an arithmetic number, because the mean of its divisors is an integer number (1405816540128).

Almost surely, 222212220021021 is an apocalyptic number.

It is an amenable number.

22212220021021 is a deficient number, since it is larger than the sum of its proper divisors (280844621027).

22212220021021 is a wasteful number, since it uses less digits than its factorization.

22212220021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22212220021021 its reverse (12012002221222), we get a palindrome (34224222242243).

The spelling of 22212220021021 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, twenty-one thousand, twenty-one".

Divisors: 1 83 2707 6551 15091 224681 543733 1252553 17733557 40851337 98861141 1471885231 3390660971 8205474703 267617108687 22212220021021