211122123311012 has 24 divisors (see below), whose sum is σ = 375943878290400. Its totient is φ = 103711663472256.

The previous prime is 211122123310991. The next prime is 211122123311027. The reversal of 211122123311012 is 210113321221112.

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, 259194437 + ... + 260007692.

It is an arithmetic number, because the mean of its divisors is an integer number (15664328262100).

Almost surely, 2^{211122123311012} is an apocalyptic number.

It is an amenable number.

211122123311012 is a deficient number, since it is larger than the sum of its proper divisors (164821754979388).

211122123311012 is a wasteful number, since it uses less digits than its factorization.

211122123311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519203915 (or 519203913 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 211122123311012 its reverse (210113321221112), we get a palindrome (421235444532124).

The spelling of 211122123311012 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-three million, three hundred eleven thousand, twelve".