121012221121002 has 24 divisors (see below), whose sum is σ = 262193383273536. Its totient is φ = 40337370500136.

The previous prime is 121012221120983. The next prime is 121012221121037. The reversal of 121012221121002 is 200121122210121.

121012221121002 is a `hidden beast` number, since 121 + 0 + 122 + 211 + 210 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23750143 + ... + 28391789.

It is an arithmetic number, because the mean of its divisors is an integer number (10924724303064).

Almost surely, 2^{121012221121002} is an apocalyptic number.

121012221121002 is an abundant number, since it is smaller than the sum of its proper divisors (141181162152534).

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

121012221121002 is a wasteful number, since it uses less digits than its factorization.

121012221121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090042 (or 6090039 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121012221121002 its reverse (200121122210121), we get a palindrome (321133343331123).

The spelling of 121012221121002 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two".