101211012010 has 16 divisors (see below), whose sum is σ = 182187745416. Its totient is φ = 40482643968.

The previous prime is 101211011953. The next prime is 101211012037. The reversal of 101211012010 is 10210112101.

It can be written as a sum of positive squares in 4 ways, for example, as 99021614329 + 2189397681 = 314677^2 + 46791^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35434 + ... + 451306.

Almost surely, 2^101211012010 is an apocalyptic number.

101211012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211012010 is a deficient number, since it is larger than the sum of its proper divisors (80976733406).

101211012010 is a wasteful number, since it uses less digits than its factorization.

101211012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440217.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101211012010 its reverse (10210112101), we get a palindrome (111421124111).

The spelling of 101211012010 in words is "one hundred one billion, two hundred eleven million, twelve thousand, ten".