1055721402022 has 16 divisors (see below), whose sum is σ = 1834600011552. Its totient is φ = 446254056000.

The previous prime is 1055721401981. The next prime is 1055721402067. The reversal of 1055721402022 is 2202041275501.

It is a happy number.

It is a super-2 number, since 2×1055721402022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 516496729 + ... + 516498772.

It is an arithmetic number, because the mean of its divisors is an integer number (114662500722).

Almost surely, 2^{1055721402022} is an apocalyptic number.

1055721402022 is a deficient number, since it is larger than the sum of its proper divisors (778878609530).

1055721402022 is a wasteful number, since it uses less digits than its factorization.

1055721402022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032995583.

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 1055721402022 its reverse (2202041275501), we get a palindrome (3257762677523).

The spelling of 1055721402022 in words is "one trillion, fifty-five billion, seven hundred twenty-one million, four hundred two thousand, twenty-two".