121001022201000 has 64 divisors (see below), whose sum is σ = 377523189276480. Its totient is φ = 32266939252800.

The previous prime is 121001022200963. The next prime is 121001022201001. The reversal of 121001022201000 is 102220100121.

It is a super-3 number, since 3×121001022201000³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121001022201001) 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, 20166834034 + ... + 20166840033.

It is an arithmetic number, because the mean of its divisors is an integer number (5898799832445).

Almost surely, 2^{121001022201000} is an apocalyptic number.

121001022201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001022201000 is an abundant number, since it is smaller than the sum of its proper divisors (256522167075480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001022201000 is a wasteful number, since it uses less digits than its factorization.

121001022201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40333674091 (or 40333674077 counting only the distinct ones).

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

Adding to 121001022201000 its reverse (102220100121), we get a palindrome (121103242301121).

The spelling of 121001022201000 in words is "one hundred twenty-one trillion, one billion, twenty-two million, two hundred one thousand".