401213012 has 12 divisors (see below), whose sum is σ = 732650016. Its totient is φ = 191884440.

The previous prime is 401212993. The next prime is 401213023. The reversal of 401213012 is 210312104.

It is a super-2 number, since 2×401213012² = 321943761996224288, 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 in 3 ways as a sum of consecutive naturals, for example, 2180414 + ... + 2180597.

It is an arithmetic number, because the mean of its divisors is an integer number (61054168).

Almost surely, 2^401213012 is an apocalyptic number.

It is an amenable number.

401213012 is a deficient number, since it is larger than the sum of its proper divisors (331437004).

401213012 is a wasteful number, since it uses less digits than its factorization.

401213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361038 (or 4361036 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401213012 is about 20030.3023441984. The cubic root of 401213012 is about 737.5503438581.

Adding to 401213012 its reverse (210312104), we get a palindrome (611525116).

The spelling of 401213012 in words is "four hundred one million, two hundred thirteen thousand, twelve".