101211134442 has 32 divisors (see below), whose sum is σ = 226792522944. Its totient is φ = 29841120000.

The previous prime is 101211134411. The next prime is 101211134473. The reversal of 101211134442 is 244431112101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101211134411) and next prime (101211134473).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20720559 + ... + 20725442.

It is an arithmetic number, because the mean of its divisors is an integer number (7087266342).

Almost surely, 2^101211134442 is an apocalyptic number.

101211134442 is an abundant number, since it is smaller than the sum of its proper divisors (125581388502).

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

101211134442 is a wasteful number, since it uses less digits than its factorization.

101211134442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41446054.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 101211134442 its reverse (244431112101), we get a palindrome (345642246543).

The spelling of 101211134442 in words is "one hundred one billion, two hundred eleven million, one hundred thirty-four thousand, four hundred forty-two".