1102210162121 has 2 divisors, whose sum is σ = 1102210162122. Its totient is φ = 1102210162120.

The previous prime is 1102210162099. The next prime is 1102210162199. The reversal of 1102210162121 is 1212610122011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828090900025 + 274119262096 = 909995^2 + 523564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102210162121 - 2²² = 1102205967817 is a prime.

It is a super-2 number, since 2×1102210162121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1102210162093 and 1102210162102.

It is not a weakly prime, because it can be changed into another prime (1102210162421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551105081060 + 551105081061.

It is an arithmetic number, because the mean of its divisors is an integer number (551105081061).

Almost surely, 2^{1102210162121} is an apocalyptic number.

It is an amenable number.

1102210162121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102210162121 is an equidigital number, since it uses as much as digits as its factorization.

1102210162121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 1102210162121 its reverse (1212610122011), we get a palindrome (2314820284132).

The spelling of 1102210162121 in words is "one trillion, one hundred two billion, two hundred ten million, one hundred sixty-two thousand, one hundred twenty-one".