121102002210021 has 32 divisors (see below), whose sum is σ = 184940359059456. Its totient is φ = 69049659576000.

The previous prime is 121102002210017. The next prime is 121102002210037. The reversal of 121102002210021 is 120012200201121.

It is not a de Polignac number, because 121102002210021 - 2² = 121102002210017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102002210041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 676718926 + ... + 676897856.

It is an arithmetic number, because the mean of its divisors is an integer number (5779386220608).

Almost surely, 2^{121102002210021} is an apocalyptic number.

It is an amenable number.

121102002210021 is a deficient number, since it is larger than the sum of its proper divisors (63838356849435).

121102002210021 is a wasteful number, since it uses less digits than its factorization.

121102002210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249313.

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

Adding to 121102002210021 its reverse (120012200201121), we get a palindrome (241114202411142).

The spelling of 121102002210021 in words is "one hundred twenty-one trillion, one hundred two billion, two million, two hundred ten thousand, twenty-one".