1211022012102 has 64 divisors (see below), whose sum is σ = 2773080050688. Its totient is φ = 345378096000.

The previous prime is 1211022012097. The next prime is 1211022012113. The reversal of 1211022012102 is 2012102201121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63126952 + ... + 63146132.

It is an arithmetic number, because the mean of its divisors is an integer number (43329375792).

Almost surely, 2^{1211022012102} is an apocalyptic number.

1211022012102 is an abundant number, since it is smaller than the sum of its proper divisors (1562058038586).

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

1211022012102 is a wasteful number, since it uses less digits than its factorization.

1211022012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21845.

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

Adding to 1211022012102 its reverse (2012102201121), we get a palindrome (3223124213223).

The spelling of 1211022012102 in words is "one trillion, two hundred eleven billion, twenty-two million, twelve thousand, one hundred two".