1202442021 has 48 divisors (see below), whose sum is σ = 1952920320. Its totient is φ = 706527360.

The previous prime is 1202442019. The next prime is 1202442023.

1202442021 is a `hidden beast` number, since 1 + 202 + 442 + 0 + 21 = 666.

1202442021 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1202442019) and next prime (1202442023).

It is not a de Polignac number, because 1202442021 - 2¹ = 1202442019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202441985 and 1202442003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202442023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1695615 + ... + 1696323.

It is an arithmetic number, because the mean of its divisors is an integer number (40685840).

Almost surely, 2^1202442021 is an apocalyptic number.

1202442021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202442021 is a deficient number, since it is larger than the sum of its proper divisors (750478299).

1202442021 is a wasteful number, since it uses less digits than its factorization.

1202442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1202442021 is about 34676.2457743049. The cubic root of 1202442021 is about 1063.3789236870.

It can be divided in two parts, 120244 and 2021, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 1202442021 in words is "one billion, two hundred two million, four hundred forty-two thousand, twenty-one".