121022020021201 has 16 divisors (see below), whose sum is σ = 131910833658240. Its totient is φ = 110364015928320.

The previous prime is 121022020021193. The next prime is 121022020021237. The reversal of 121022020021201 is 102120020220121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121022020021201 - 2³ = 121022020021193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121022020021291) 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, 107293840 + ... + 108415921.

It is an arithmetic number, because the mean of its divisors is an integer number (8244427103640).

Almost surely, 2^{121022020021201} is an apocalyptic number.

It is an amenable number.

121022020021201 is a deficient number, since it is larger than the sum of its proper divisors (10888813637039).

121022020021201 is a wasteful number, since it uses less digits than its factorization.

121022020021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215710296.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022020021201 its reverse (102120020220121), we get a palindrome (223142040241322).

The spelling of 121022020021201 in words is "one hundred twenty-one trillion, twenty-two billion, twenty million, twenty-one thousand, two hundred one".