102011020012221 has 16 divisors (see below), whose sum is σ = 144017463538368. Its totient is φ = 64006067462400.

The previous prime is 102011020012217. The next prime is 102011020012229. The reversal of 102011020012221 is 122210020110201.

It is not a de Polignac number, because 102011020012221 - 2² = 102011020012217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102011020012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011020012229) 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, 9332515 + ... + 17062176.

It is an arithmetic number, because the mean of its divisors is an integer number (9001091471148).

Almost surely, 2^{102011020012221} is an apocalyptic number.

It is an amenable number.

102011020012221 is a deficient number, since it is larger than the sum of its proper divisors (42006443526147).

102011020012221 is a wasteful number, since it uses less digits than its factorization.

102011020012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26470492.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102011020012221 its reverse (122210020110201), we get a palindrome (224221040122422).

The spelling of 102011020012221 in words is "one hundred two trillion, eleven billion, twenty million, twelve thousand, two hundred twenty-one".