211220048 has 20 divisors (see below), whose sum is σ = 440719188. Its totient is φ = 97486080.

The previous prime is 211220047. The next prime is 211220057. The reversal of 211220048 is 840022112.

It is a happy number.

211220048 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43983424 + 167236624 = 6632^2 + 12932^2 .

It is a super-2 number, since 2×211220048² = 89227817354244608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507533 + ... + 507948.

Almost surely, 2^211220048 is an apocalyptic number.

It is an amenable number.

211220048 is an abundant number, since it is smaller than the sum of its proper divisors (229499140).

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

211220048 is a wasteful number, since it uses less digits than its factorization.

211220048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015502 (or 1015496 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 211220048 is about 14533.4114370990. The cubic root of 211220048 is about 595.5410637506.

The spelling of 211220048 in words is "two hundred eleven million, two hundred twenty thousand, forty-eight".