121145520126 has 16 divisors (see below), whose sum is σ = 247446169344. Its totient is φ = 39522651864.

The previous prime is 121145520107. The next prime is 121145520131. The reversal of 121145520126 is 621025541121.

It is a super-3 number, since 3×121145520126³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121145520093 and 121145520102.

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, 214796740 + ... + 214797303.

It is an arithmetic number, because the mean of its divisors is an integer number (15465385584).

Almost surely, 2^121145520126 is an apocalyptic number.

121145520126 is an abundant number, since it is smaller than the sum of its proper divisors (126300649218).

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

121145520126 is a wasteful number, since it uses less digits than its factorization.

121145520126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429594095.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 121145520126 in words is "one hundred twenty-one billion, one hundred forty-five million, five hundred twenty thousand, one hundred twenty-six".