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BaseRepresentation
bin10000000010100000111…
…010000110001101011001
310220100222222211222111222
4100002200322012031121
5121024312032241441
62202203203301425
7142426551502055
oct20024072061531
93810888758458
101102211212121
11395499549428
1215974837a875
137cc26c34106
143b4c1022c65
151da0eb84d4b
hex100a0e86359

1102211212121 has 16 divisors (see below), whose sum is σ = 1148658931200. Its totient is φ = 1056452025600.

The previous prime is 1102211212111. The next prime is 1102211212127. The reversal of 1102211212121 is 1212121122011.

It is not a de Polignac number, because 1102211212121 - 222 = 1102207017817 is a prime.

It is a super-2 number, since 2×11022112121212 (a number of 25 digits) contains 22 as substring.

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 1102211212121.

It is not an unprimeable number, because it can be changed into a prime (1102211212127) 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, 8651201 + ... + 8777681.

It is an arithmetic number, because the mean of its divisors is an integer number (71791183200).

Almost surely, 21102211212121 is an apocalyptic number.

It is an amenable number.

1102211212121 is a deficient number, since it is larger than the sum of its proper divisors (46447719079).

1102211212121 is a wasteful number, since it uses less digits than its factorization.

1102211212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129200.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1102211212121 its reverse (1212121122011), we get a palindrome (2314332334132).

The spelling of 1102211212121 in words is "one trillion, one hundred two billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-one".