101221552 has 20 divisors (see below), whose sum is σ = 197138920. Its totient is φ = 50347008.

The previous prime is 101221469. The next prime is 101221559. The reversal of 101221552 is 255122101.

It is not an unprimeable number, because it can be changed into a prime (101221559) 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, 13302 + ... + 19477.

It is an arithmetic number, because the mean of its divisors is an integer number (9856946).

Almost surely, 2^101221552 is an apocalyptic number.

It is an amenable number.

101221552 is a deficient number, since it is larger than the sum of its proper divisors (95917368).

101221552 is a wasteful number, since it uses less digits than its factorization.

101221552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32980 (or 32974 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 101221552 is about 10060.8922069566. The cubic root of 101221552 is about 466.0412201744.

Adding to 101221552 its reverse (255122101), we get a palindrome (356343653).

The spelling of 101221552 in words is "one hundred one million, two hundred twenty-one thousand, five hundred fifty-two".