124220212 has 6 divisors (see below), whose sum is σ = 217385378. Its totient is φ = 62110104.

The previous prime is 124220189. The next prime is 124220219. The reversal of 124220212 is 212022421.

It can be written as a sum of positive squares in only one way, i.e., 86936976 + 37283236 = 9324^2 + 6106^2 .

It is a super-2 number, since 2×124220212² = 30861322138649888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124220219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527523 + ... + 15527530.

Almost surely, 2^124220212 is an apocalyptic number.

It is an amenable number.

124220212 is a deficient number, since it is larger than the sum of its proper divisors (93165166).

124220212 is a wasteful number, since it uses less digits than its factorization.

124220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31055057 (or 31055055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 124220212 is about 11145.4121502975. The cubic root of 124220212 is about 498.9581131181.

Adding to 124220212 its reverse (212022421), we get a palindrome (336242633).

It can be divided in two parts, 12 and 4220212, that added together give a palindrome (4220224).

The spelling of 124220212 in words is "one hundred twenty-four million, two hundred twenty thousand, two hundred twelve".