121022201001 has 16 divisors (see below), whose sum is σ = 173907090560. Its totient is φ = 74418791040.

The previous prime is 121022200987. The next prime is 121022201149. The reversal of 121022201001 is 100102220121.

It is not a de Polignac number, because 121022201001 - 2¹⁸ = 121021938857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121022200001) 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, 1123021 + ... + 1226058.

It is an arithmetic number, because the mean of its divisors is an integer number (10869193160).

Almost surely, 2^121022201001 is an apocalyptic number.

It is an amenable number.

121022201001 is a deficient number, since it is larger than the sum of its proper divisors (52884889559).

121022201001 is a wasteful number, since it uses less digits than its factorization.

121022201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350416.

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

Adding to 121022201001 its reverse (100102220121), we get a palindrome (221124421122).

The spelling of 121022201001 in words is "one hundred twenty-one billion, twenty-two million, two hundred one thousand, one".