121022002101 has 64 divisors (see below), whose sum is σ = 217682712576. Its totient is φ = 57757190400.

The previous prime is 121022002091. The next prime is 121022002139. The reversal of 121022002101 is 101200220121.

It is not a de Polignac number, because 121022002101 - 2⁷ = 121022001973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022000101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 538135 + ... + 729131.

It is an arithmetic number, because the mean of its divisors is an integer number (3401292384).

Almost surely, 2^121022002101 is an apocalyptic number.

121022002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121022002101 is a deficient number, since it is larger than the sum of its proper divisors (96660710475).

121022002101 is a wasteful number, since it uses less digits than its factorization.

121022002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191242.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121022002101 its reverse (101200220121), we get a palindrome (222222222222).

The spelling of 121022002101 in words is "one hundred twenty-one billion, twenty-two million, two thousand, one hundred one".