121151252 has 6 divisors (see below), whose sum is σ = 212014698. Its totient is φ = 60575624.

The previous prime is 121151243. The next prime is 121151267. The reversal of 121151252 is 252151121.

It can be written as a sum of positive squares in only one way, i.e., 119814916 + 1336336 = 10946^2 + 1156^2 .

It is a super-2 number, since 2×121151252² = 29355251722335008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15143903 + ... + 15143910.

It is an arithmetic number, because the mean of its divisors is an integer number (35335783).

Almost surely, 2^121151252 is an apocalyptic number.

It is an amenable number.

121151252 is a deficient number, since it is larger than the sum of its proper divisors (90863446).

121151252 is a wasteful number, since it uses less digits than its factorization.

121151252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30287817 (or 30287815 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 121151252 is about 11006.8729437566. The cubic root of 121151252 is about 494.8147482145.

The spelling of 121151252 in words is "one hundred twenty-one million, one hundred fifty-one thousand, two hundred fifty-two".