211122012010 has 128 divisors (see below), whose sum is σ = 478261324800. Its totient is φ = 66676716288.

The previous prime is 211122012007. The next prime is 211122012121. The reversal of 211122012010 is 10210221112.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22424064 + ... + 22433476.

It is an arithmetic number, because the mean of its divisors is an integer number (3736416600).

Almost surely, 2^211122012010 is an apocalyptic number.

211122012010 is an abundant number, since it is smaller than the sum of its proper divisors (267139312790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211122012010 is a wasteful number, since it uses less digits than its factorization.

211122012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957 (or 9943 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211122012010 its reverse (10210221112), we get a palindrome (221332233122).

The spelling of 211122012010 in words is "two hundred eleven billion, one hundred twenty-two million, twelve thousand, ten".