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2221211210101 = 13712406512687
BaseRepresentation
bin100000010100101010100…
…000010101000101110101
321212100100000202122121121
4200110222200111011311
5242343020032210401
64420224344543541
7316322453523532
oct40245240250565
97770300678547
102221211210101
11787012904094
122ba59b181bb1
131315c8178c30
1479715a63d89
153cba36beca1
hex2052a815175

2221211210101 has 8 divisors (see below), whose sum is σ = 2425764789504. Its totient is φ = 2021470656240.

The previous prime is 2221211210081. The next prime is 2221211210123. The reversal of 2221211210101 is 1010121121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221211210101 - 211 = 2221211208053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221211910101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203255421 + ... + 1203257266.

It is an arithmetic number, because the mean of its divisors is an integer number (303220598688).

Almost surely, 22221211210101 is an apocalyptic number.

It is an amenable number.

2221211210101 is a deficient number, since it is larger than the sum of its proper divisors (204553579403).

2221211210101 is a wasteful number, since it uses less digits than its factorization.

2221211210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406512771.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2221211210101 its reverse (1010121121222), we get a palindrome (3231332331323).

The spelling of 2221211210101 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, one hundred one".

Divisors: 1 13 71 923 2406512687 31284664931 170862400777 2221211210101