101221110022012 has 48 divisors (see below), whose sum is σ = 185328694075392. Its totient is φ = 48281735015360.

The previous prime is 101221110021979. The next prime is 101221110022013. The reversal of 101221110022012 is 210220011122101.

It is a super-2 number, since 2×101221110022012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221110022013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239244518 + ... + 1239326194.

It is an arithmetic number, because the mean of its divisors is an integer number (3861014459904).

Almost surely, 2^{101221110022012} is an apocalyptic number.

It is an amenable number.

101221110022012 is a deficient number, since it is larger than the sum of its proper divisors (84107584053380).

101221110022012 is a wasteful number, since it uses less digits than its factorization.

101221110022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117258 (or 117256 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101221110022012 its reverse (210220011122101), we get a palindrome (311441121144113).

The spelling of 101221110022012 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred ten million, twenty-two thousand, twelve".