210202111212122 has 16 divisors (see below), whose sum is σ = 329793501376512. Its totient is φ = 100292652453840.

The previous prime is 210202111211977. The next prime is 210202111212131. The reversal of 210202111212122 is 221212111202012.

It is a junction number, because it is equal to n+sod(n) for n = 210202111212094 and 210202111212103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5427072218 + ... + 5427110949.

It is an arithmetic number, because the mean of its divisors is an integer number (20612093836032).

Almost surely, 2^{210202111212122} is an apocalyptic number.

210202111212122 is a deficient number, since it is larger than the sum of its proper divisors (119591390164390).

210202111212122 is a wasteful number, since it uses less digits than its factorization.

210202111212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854183613.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 210202111212122 its reverse (221212111202012), we get a palindrome (431414222414134).

The spelling of 210202111212122 in words is "two hundred ten trillion, two hundred two billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-two".