101220210121112 has 32 divisors (see below), whose sum is σ = 193384390636800. Its totient is φ = 49651193289984.

The previous prime is 101220210121111. The next prime is 101220210121141. The reversal of 101220210121112 is 211121012022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220210121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4357688 + ... + 14880519.

It is an arithmetic number, because the mean of its divisors is an integer number (6043262207400).

Almost surely, 2^{101220210121112} is an apocalyptic number.

It is an amenable number.

101220210121112 is a deficient number, since it is larger than the sum of its proper divisors (92164180515688).

101220210121112 is a wasteful number, since it uses less digits than its factorization.

101220210121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250675 (or 19250671 counting only the distinct ones).

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

Adding to 101220210121112 its reverse (211121012022101), we get a palindrome (312341222143213).

The spelling of 101220210121112 in words is "one hundred one trillion, two hundred twenty billion, two hundred ten million, one hundred twenty-one thousand, one hundred twelve".