121021212022201 has 16 divisors (see below), whose sum is σ = 122688926097408. Its totient is φ = 119365850640400.

The previous prime is 121021212022163. The next prime is 121021212022211. The reversal of 121021212022201 is 102220212120121.

It is a cyclic number.

It is not a de Polignac number, because 121021212022201 - 2¹⁹ = 121021211497913 is a prime.

It is a super-2 number, since 2×121021212022201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021212022211) 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, 27019980 + ... + 31178866.

It is an arithmetic number, because the mean of its divisors is an integer number (7668057881088).

Almost surely, 2^{121021212022201} is an apocalyptic number.

It is an amenable number.

121021212022201 is a deficient number, since it is larger than the sum of its proper divisors (1667714075207).

121021212022201 is a wasteful number, since it uses less digits than its factorization.

121021212022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160372.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121021212022201 its reverse (102220212120121), we get a palindrome (223241424142322).

The spelling of 121021212022201 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twelve million, twenty-two thousand, two hundred one".