122021002121012 has 24 divisors (see below), whose sum is σ = 213821550419400. Its totient is φ = 60929136889856.

The previous prime is 122021002121003. The next prime is 122021002121047. The reversal of 122021002121012 is 210121200120221.

It can be written as a sum of positive squares in 4 ways, for example, as 1905846514576 + 120115155606436 = 1380524^2 + 10959706^2 .

It is a super-3 number, since 3×122021002121012³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77788064 + ... + 79341192.

It is an arithmetic number, because the mean of its divisors is an integer number (8909231267475).

Almost surely, 2^{122021002121012} is an apocalyptic number.

It is an amenable number.

122021002121012 is a deficient number, since it is larger than the sum of its proper divisors (91800548298388).

122021002121012 is a wasteful number, since it uses less digits than its factorization.

122021002121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579315 (or 1579313 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021002121012 its reverse (210121200120221), we get a palindrome (332142202241233).

The spelling of 122021002121012 in words is "one hundred twenty-two trillion, twenty-one billion, two million, one hundred twenty-one thousand, twelve".