1021121011102 has 16 divisors (see below), whose sum is σ = 1564837448832. Its totient is φ = 499609459800.

The previous prime is 1021121011091. The next prime is 1021121011129. The reversal of 1021121011102 is 2011101211201.

It is a happy number.

It is a congruent number.

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, 25212568 + ... + 25253035.

It is an arithmetic number, because the mean of its divisors is an integer number (97802340552).

Almost surely, 2^{1021121011102} is an apocalyptic number.

1021121011102 is a deficient number, since it is larger than the sum of its proper divisors (543716437730).

1021121011102 is a wasteful number, since it uses less digits than its factorization.

1021121011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50465823.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021121011102 its reverse (2011101211201), we get a palindrome (3032222222303).

The spelling of 1021121011102 in words is "one trillion, twenty-one billion, one hundred twenty-one million, eleven thousand, one hundred two".